Question about 2003 Mazda Protege
Test the temperature sending unit. most mazdas built after 1998 have 2 of them.one sending unit is for the the guage in the dash, the other sending unit goes to the vehicle computer, which in turn controls the idle and fuel to air ratio for the vehicle. if it is getting a bad signal or none t all it thinks the car is still very cold and causes it to run ruff and the light stays on till reset
Posted on Apr 11, 2009
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Posted on Jan 02, 2017
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